Perhaps you should try some spelling variations:
"coder coder and reference function" » "coder coder and preference function" (Expand search), "coder coder and preference functions" (Expand search), "coder coder and inference function" (Expand search), "coder decoder and reference function" (Expand search), "code code and reference function" (Expand search), "decoder codec and reference function" (Expand search), "coder code and reference function" (Expand search), "coder codes and reference function" (Expand search), "coder poder and reference function" (Expand search)
"_ python python python programming" » "_ pythons python python programming" (Expand search), "_ piton python python programming" (Expand search), "_ pitons python python programming" (Expand search)

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• Performing a fuzzy search may retrieve terms with similar spellings: (("coder coder and reference function") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder and reference function\") OR (\"_ python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder and reference function ) OR ( _ python python python programming ))*.